import java.util.ArrayList;

public class Main01J {
    int a = 0;
    String string = "";

    public static void main(String[] args) {
        System.out.println("Hello,world!");
        final ArrayList arrayList = new ArrayList();
        arrayList.add("1");

    }

    public String getColorString(Color color) {
        String str = null;
        switch (color) {
            case RED:
                str = "red";
                break;
            case ORANGE:
                str = "orange";
                break;
            case YELLOW:
                str = "yellow";
                break;
            case GREEN:
                str = "green";
                break;
            case BLUE:
                str = "blue";
                break;
        }
        return str;
    }
}